WorksheetsEnergy (Week 5)
Total questions: 10
Worksheet time: 4mins
Concentrated solar power stores the sun's radiation in what form of energy?
W) Thermal
X) Chemical
Y) Kinetic
Z) Acoustic
Researchers at Lawrence Berkeley National Lab are examining organic carbon in soil as a potential source of greenhouse gases. Which of the following best describes their finding?
W) Soil carbon cannot be converted to carbon dioxide
X) Organisms release more carbon dioxide in cold soil than in warm soil
Y) Organisms release more carbon dioxide in warm soil than in cold soil
Z) Soil is a relatively static carbon sink
As a spring is compressed, which of the following best describes what happens to the amount of elastic potential energy stored in the spring?
W) It increases
X) It decreases
Y) It is unchanged
Z) It decreases, then increases
Researchers at SLAC [slack] are developing zeolite catalysts for methanol production. Which of the following statements best explains why zeolites are such effective catalysts?
W) They are very electron-poor
X) They are made from nonmetals
Y) They have a lot of pores
Z) They are very dense
Scientists at Lawrence Berkeley National Laboratory have built an observatory to study how rocks fracture, a process that influences greenhouse gas emissions, impacts groundwater, and induces seismicity. In particular, this research is most relevant to the harvesting of what energy resource?
W) Shale gas
X) Crude oil
Y) Geothermal energy
Z) Cellulosic
In the United States, which of the following renewable energy sources provides the smallest annual energy output?
W) Solar
X) Hydroelectric
Y) Biomass
Z) Wind
Scientists working at Ames Laboratory have devised a way to increase the catalytic activity of nanoparticles in fuel cell applications. What quantity related to the particles did scientists focus on increasing?
W) Number
X) Length
Y) Surface area
Z) Volume
Which of the following appliances typically uses the most electricity per unit time?
W) Vacuum cleaner
X) Hair dryer
Y) 60-watt incandescent light bulb
Z) Desktop computer in active mode
What is the term for the process of burning a fuel?
W) Conduction
X) Combustion
Y) Explosion
Z) Transformation
Research at Lawrence Livermore National Laboratory is aimed at reducing methane emissions. According to the Energy Information Administration, which of the following fractions is closest to the estimate of the 100-year net global warming potential of methane?
W) One-one-hundredth
X) One-fourth
Y) Three-fourths
Z) Nine-tenths
